updated dockerfile

ref: lovell/sharp/issues/3967

Dockerfile

@@ -2,25 +2,42 @@ FROM node:22-alpine as base
 
 ENV PNPM_HOME="/var/lib/pnpm"
 ENV PATH="$PNPM_HOME:$PATH"
+
 RUN corepack enable
 RUN apk add --no-cache tzdata
 ENV TZ=Asia/Taipei
 WORKDIR /app
 
+# Install dependencies based on the preferred package manager
+FROM base AS deps
 COPY package.json pnpm-lock.yaml ./
+RUN pnpm i --frozen-lockfile
 
-RUN pnpm install --frozen-lockfile
+# Rebuild the source code only when needed
+FROM base AS builder
+WORKDIR /app
+COPY --from=deps /app/node_modules ./node_modules
 COPY . .
+RUN pnpm run build
+RUN pnpm dlx prisma generate
 
-RUN npx prisma generate
-RUN pnpm build
 
-RUN addgroup --system --gid 1001 nodejs && \
-    adduser --system --uid 1001 nextjs
+# Production image, copy all the files and run next
+FROM base AS runner
+WORKDIR /app
+ENV NODE_ENV production
+RUN mkdir .next
+
+RUN chown nextjs:nodejs .next
 
+# Automatically leverage output traces to reduce image size
+# https://nextjs.org/docs/advanced-features/output-file-tracing
+COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
+COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 USER nextjs
 
 EXPOSE 3000
 ENV PORT 3000
+ENV HOSTNAME "0.0.0.0"
 
-CMD pnpm start
+CMD ["node", "server.js"]